La Tour du Valat

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Some adaptations to cold in penguins

R. Taylor 1961

Antarctic, 2(11)

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Status, ecology, behaviour and conservation of Raso Lark Alauda razae

P. F. Donald, Auteur ; M. De Ponte, Auteur ; M. J. P. Groz, Auteur ; R. Taylor, Auteur

Dans Bird Conservation International (13(1) MAR 2003)

In October 2001, the world population of Raso Lark Alauda razae, confined to the uninhabited, and islet of Raso in the Cape Verde Islands, was estimated at between 128 and 138 birds, of which 61-66% were males. The biased sex ratio was confirmed[...]

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Status of Raso Lark Alauda razae in 2003, with further notes on sex ratio, behaviour and conservation

P. F. Donald, Auteur ; M. D. Brooke, Auteur ; M. R. Bolton, Auteur ; R. Taylor, Auteur ; C. E. Wells, Auteur ; T. Marlow, Auteur ; S. M. Hille, Auteur

Dans Bird Conservation International (15(2) JUN 2005)

The global population of the Critically Endangered Raso Lark Alauda razac was estimated in January 2003 at 93-103 birds and in November 2003 at 76-87 birds. Of these, only 25-35% were females. Counts were based on observations of individually co[...]

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